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Nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete

A hydraulic concrete, nano-inorganic technology, applied in the field of hydraulic engineering construction, can solve cracks, frost heave, erosion, cavitation, alkali-aggregate reaction, carbonization, dissolution, erosion, microbial corrosion, affecting work efficiency and water quality Safety, affecting the normal water delivery function of the structure, etc., to solve the problems of difficulty in cleaning, consistent thermal expansion and contraction rate, and easy operation

Pending Publication Date: 2021-05-25
韦尔狄(广州)生物工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the structural characteristics of hydraulic concrete buildings and the different working environments, they have been scoured by water for a long time, and exposed to the sun, rain, ice, snow, and wind and frost. In addition, air, industrial pollution and concrete Under the influence of self-carbonization and corrosion of steel bars, it will deteriorate and cause cracks, frost heave, grinding, cavitation, alkali-aggregate reaction, carbonization, dissolution, erosion, microbial corrosion and other diseases. The surface of pool walls, channels and culverts It breeds all kinds of shellfish, algae, mold and stains, which accelerates the aging and damage of the cement base surface. In severe cases, the structure will be damaged and collapsed, affecting or limiting the normal water delivery function of the structure and shortening the service life of the structure. The cost of maintenance and renovation in the process of building use is affected, which affects work efficiency and water quality safety, not only causes economic losses, but also seriously wastes resources, and even causes environmental and health problems in severe cases.

Method used

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  • Nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete
  • Nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete
  • Nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Two-component polymer mortar bonded primer (1)

[0054] Component A, weighing: 65 kg of styrene-acrylic emulsion, 25 kg of deionized water, 2 kg of dispersant, 1 kg of antibacterial agent, 2 kg of defoamer; mix and stir the weighed materials to obtain component A for use ;

[0055]Component B, weighed: 35 kg Portland cement (grade 42.5), 10 kg white cement, 20 kg 100 mesh quartz sand, 10 kg heavy calcium powder, 3 kg metakaolin, 3 kg latex powder, 1 kg polycarboxylate Acid high-efficiency water reducer; mix and stir the weighed materials to obtain component B for use;

[0056] Component A: Component B is mixed according to the ratio of 1:3, stirred evenly, sprayed on the surface of the hydraulic concrete sample, and dried. The hydraulic concrete sample is 10cmX10cm in size, forming a two-component polymer mortar bond base coat (1). The thickness of the two-component polymer mortar bonding primer (1) is 1 mm.

[0057] Two-component high-strength polymer mortar medium...

Embodiment 2

[0065] Two-component polymer mortar bonded primer (1)

[0066] Component A, weighing: 75 kg of styrene-acrylic emulsion, 35 kg of deionized water, 3 kg of dispersant, 2 kg of antibacterial agent, 3 kg of defoamer; mix and stir the weighed materials to obtain component A for use ;

[0067] Component B, weighing: 45 kg Portland cement (42.5 grade), 20 kg white cement, 35 kg 100 mesh quartz sand, 20 kg heavy calcium powder, 5 kg metakaolin, 5 kg latex powder, 3 kg polycarboxylate Acid high-efficiency water reducer; mix and stir the weighed materials to obtain component B for use;

[0068] Component A: Component B is mixed according to the ratio of 1:3, stirred evenly, sprayed on the surface of the hydraulic concrete sample, and dried. The hydraulic concrete sample is 10cmX10cm in size, forming a two-component polymer mortar bond base coat (1). The thickness of the two-component polymer mortar bonding primer (1) is 1 mm.

[0069] Two-component high-strength polymer mortar medi...

Embodiment 3

[0077] Two-component polymer mortar bonded primer (1)

[0078] Component A, weighing: 70 kg of styrene-acrylic emulsion, 30 kg of deionized water, 2.5 kg of dispersant, 1.5 kg of antibacterial agent, 2.5 kg of defoamer; mix and stir the weighed materials to obtain component A for use ;

[0079] Component B, weighed: 40 kg Portland cement (grade 42.5), 15 kg white cement, 28 kg 100 mesh quartz sand, 17.5 kg heavy calcium powder, 4 kg metakaolin, 4 kg latex powder, 2 kg polycarboxylate Acid high-efficiency water reducer; mix and stir the weighed materials to obtain component B for use;

[0080] Component A: Component B is mixed according to the ratio of 1:3, stirred evenly, sprayed on the surface of the hydraulic concrete sample, and dried. The hydraulic concrete sample is 10cmX10cm in size, forming a two-component polymer mortar bond base coat (1). The thickness of the two-component polymer mortar bonding primer (1) is 0.8mm.

[0081] Two-component high-strength polymer mor...

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Abstract

The invention relates to a nano inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete, which is characterized by comprising a bi-component high-molecular polymer mortar bonding bottom coating, a bi-component high-strength polymer mortar middle coating and a nano anti-corrosion and anti-fouling protective surface coating, wherein the bi-component high-molecular polymer mortar bonding bottom coating, the bi-component high-strength polymer mortar middle coating and the nano anti-corrosion and anti-pollution protective surface coating are sequentially stacked together. The coating structure has the advantages of corrosion prevention, seepage prevention and pollution resistance, good effect, good stability, easiness in cleaning, lasting effect, good applicability and the like.

Description

technical field [0001] The invention relates to the field of hydraulic engineering construction, in particular to a nano-scale inorganic anti-corrosion, anti-seepage and anti-fouling coating structure for hydraulic concrete. Background technique [0002] With the comprehensive promotion of river, lake and reservoir projects, the increase of cross-basin water diversion projects, the forms of hydraulic buildings tend to be diversified. In water conservancy projects, single or several buildings with different functions and different types are often used to regulate water flow. , Prevent and control water damage to meet the needs of water resources, mainly including water delivery channels, water delivery pipelines, diversion tunnels, aqueducts, inverted siphons, culverts, etc. [0003] Hydraulic concrete is one of the most important materials in the construction of water conservancy projects. It needs to play a role under various complex environmental conditions and ensure the ...

Claims

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Application Information

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IPC IPC(8): C04B41/70
CPCC04B41/52C04B41/70C04B41/009C04B28/00C04B26/00C04B41/5079C04B41/4535C04B41/4857C04B41/5035C04B41/501C04B41/5037C04B41/48C04B41/5031C04B41/50C04B41/4803C04B41/5133C04B41/46
Inventor 詹政法
Owner 韦尔狄(广州)生物工程科技有限公司
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